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A104257 as a triangular array

2
33
444
5595
6616106
772517127
88362620138
9949373021279
101064504231642810
111181655643125653011
1212100827257216126683112
13131211019073343

A104257 as a square array

2345678910111213
345678910111213
49162536496481100121
510172637506582101
612203042567290
7132131435773
82764125216343
92865126
103068
1131
12

A104257 as an upper right triangle

2345678910111213
345678910111213
49162536496481100121
510172637506582101
612203042567290
7132131435773
82764125216343
92865126
103068
1131
12

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Last modified February 23 23:15 EST 2018. Contains 299595 sequences. (Running on oeis4.)